Influence of Nozzle Width in Turbocharger Scroll on its Outlet Flow Field
Author(s): WANG Ren-ren, FANG Ke-xin, LI Guo-xiang
Pages: 12-15
Year: 2001 Issue: 2
Journal: VEHICLE ENGINE
Keyword: 涡轮增压器; 无叶蜗壳; 喷嘴宽度; 气流角; 速度; 有限差分法;
Abstract: he pear-shaped flow section contour of turbocharger scroll is featured by heart-shaped line. The flow field of nozzle outlet is simulated by using FDM,and the influence of nozzle width B on its flow field is investigated. The nozzle outlet velocity and flow angle α are uneven,and with the B axial increase the α decreases gradually and its distribution tends even,but the velocity increases constantly and its distribution becomes worse. The flow field of nozzle outlet varies a little as the B decreases to some extent. As the B decreases linearly along the scroll circumference,the distribution of α is improved, but the velocity is improved a little.
Pages: 12-15
Year: 2001 Issue: 2
Journal: VEHICLE ENGINE
Keyword: 涡轮增压器; 无叶蜗壳; 喷嘴宽度; 气流角; 速度; 有限差分法;
Abstract: he pear-shaped flow section contour of turbocharger scroll is featured by heart-shaped line. The flow field of nozzle outlet is simulated by using FDM,and the influence of nozzle width B on its flow field is investigated. The nozzle outlet velocity and flow angle α are uneven,and with the B axial increase the α decreases gradually and its distribution tends even,but the velocity increases constantly and its distribution becomes worse. The flow field of nozzle outlet varies a little as the B decreases to some extent. As the B decreases linearly along the scroll circumference,the distribution of α is improved, but the velocity is improved a little.
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